6d60d452e0ca0c2ef4a0fa40538c6bf7cda815b1
6 Commits
| Author | SHA1 | Message | Date | |
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 3dtours
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88d6d0e648 |
web: read the ring's light by direction, and off the dust's soft edge
The last commit pasted the borrowed patch at the light of the place it lands in,
and read that light as one number per spot: the mean of the ring around the dust
minus the mean of the same ring around the patch. That number is a light the
place has when the ring is all one thing. It is not a light the place has when
the ring is not. A twig, a hairline, the edge of a table under the brush, and a
minority of the taps stand on the thing rather than on the ground: the mean then
follows the minority — it is a colour the place never had — and the patch is
pasted in it. The donor was of exactly the right light, the search had gated it
at LIGHT_GATE, and the repair still lands as a dark blotch. A mean is the wrong
estimator for a ring that is not one thing; the search already knew that, and
reads its own ring as a median for the same reason.
So the light is read once PER DIRECTION. Each of the sixteen taps is a pair of
readings — the place's ring and the patch's ring at the same sixteen places —
and a pixel takes the correction of the two readings it lies between,
interpolated by its own angle around the spot, in the same single draw. The rim
then meets the place all the way round instead of on average: a tap that landed
on the twig bends the part of the rim near the twig, and the far side of the
circle is left where it was. Sixteen taps rather than eight because a tap's
influence reaches only as far as the next tap, so the finer the ring, the less
of the rim one hard pixel of the photo can drag with it.
The second half of the change came out of the app, not out of the lab. With the
per-direction reading and no other change, heal-probe.cjs went from 49 PASS to
41 PASS / 8 FAIL: the repair's own centre came out 15-18 levels dark on a flat
field, with the frame around it clean. The reason is the estimator again, from
the other end — one direction is one pair of pixels and carries no averaging, so
whatever the ring reads at that direction, the patch gets in full. And the ring
at RING_R alone is not clear of the dust: a speck spreads about a pixel past
where it is drawn in the pixels the shader samples, so the nearest taps sit
inside the dust's own soft edge and read the dust's light. The mean had been
hiding it: one contaminated tap in eight is a level off; the same tap read whole
is the blotch. The ring is now a pixel further out again (RING_PAD), in the same
pixels the sampler works in — a fraction of the radius would be nothing at all at
the sensor-dust end of the brush, which is where this tool is aimed — and the
probe is back to 49 PASS / 0 FAIL.
Measured on a sweep of the two ways of reading it (heal-ring-sweep.cjs, CanvasKit,
three scenes, the step the eye reads at the rim plus the level of the patch's own
middle against the ground it landed in, levels out of 255):
scene shipped mean 8@1.15 this: 16 taps, per direction
uniform light difference step 0, centre 0 step 0, centre 0
twig across the ring step 53 (mean 16.4), step 56 (mean 2.4),
centre 34 dark centre 0
brush fits the speck centre 5 dark centre 0
The worst step on the twig scene is unchanged — that is the twig's own edge
crossing the rim, which no level can meet, and the floor the copy set at 85. What
moved is the average (16.4 levels to 2.4) and the level of the patch's middle,
which is the blotch: 34 levels of a place that never had them, down to none.
No new dependency. cv.seamlessClone is the same thing this shader already does —
the membrane half of a Poisson edit — and OpenCV.js would be 5-10 MB off a CDN,
solved on the CPU per spot, outside the one draw the preview, the recipe and the
export all read from: the correction is recomputed from the snapshot on every
render, which is why the preview and the exported file agree by construction and
why a saved photo opens onto the same repair. It also cannot run in the worker
the brush paints in or against the fractions the recipe stores.
Verified:
heal-blotch-lab.cjs (scratchpad, CanvasKit, no browser) — new, 12 PASS / 0
FAIL, and 8 PASS / 4 FAIL against the bundle built from
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3dtours
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57ade27eee |
web: paste the borrowed patch at the light of the place it lands in
HEAL borrows a patch of the photo and copies it over the dust. The copy brings
the patch's texture — which is the point, the repair is the same picture rather
than a blur over the speck — and it also brings the LIGHT the patch was
photographed in, which is not the point at all. The search already refuses a
donor from another light: LIGHT_GATE is 20 levels, and a candidate past that is
not scored. But inside the gate a patch can still be 20 levels off, and 20 levels
is a soft blotch of its own at the rim of the circle — a mark where the dust
used to be, which is what the user is complaining about when they say the repair
is visible. On skin, sky and sand the dust is not the problem the eye finds; the
step the paste puts down is.
So the paste is now the patch's gradients worn at the destination's level: the
shift is the mean of the ring the spot sits in minus the mean of the same ring
around the patch it borrowed, and what lands is the borrowed pixels plus that.
It is the membrane half of a Poisson edit — keep the texture, adopt the level —
and it is eight taps per spot inside the shader that was already running. No
solve, no ping-pong, no extra pass: the correction is recomputed from the
snapshot inside the shader on every render, so the preview and the export agree
by construction and the recipe carries nothing new. The same spot in a saved
photo opens onto the same repair, because nothing about the correction is stored.
Where the ring is measured turned out to be the whole of the change. The first
cut read it at the feather line, 0.85 of the radius, which is where the pasted
patch is still at full strength and therefore looks like the natural place to
compare — but that ring sits just inside the circle, and when the brush fits the
speck snugly, which is exactly how a dust brush is used, it reads the speck: the
light the repair is measured against is then the dust's own, and the patch gets
shifted onto the very dark it exists to erase. It also reversed the smoothstep
edges the moment the ring was pushed outside the brush (a radius past rad, edges
the wrong way round, and the pass quietly drew nothing). The ring now sits just
OUTSIDE the brush, at RING_R of the radius — the same radius the search reads a
spot's light at. Outside, both sides are photographs: the ground the repair has
to sit in, and the ground the patch came from. That the two are the same
measurement is the point: a donor that passed the gate was already within
LIGHT_GATE of this ring, so the shift it now receives is bounded by the gate. The
decision to borrow and the correction to the borrow stopped being two different
opinions about the same pixel.
Eight taps at the same angles on both sides is what makes the difference read as
light rather than as texture: the grain, the detail and the neighbouring specks
that differ between two patches are averaged out by sampling both rings at the
same places, and what is left is the level. The rim, measured as the level inside
the circle against the level of the ground outside it, drops from 20 levels to 0
on a scene built for it, while the borrowed contrast stays at 40 — the level
moved and the gradients did not. That is the line between this and a blur, and it
is the line the lab holds it to.
Verified:
heal-seam-lab.cjs (scratchpad, CanvasKit, no browser) — 10 PASS, 0 FAIL: one
scene, the speck on the grey ground with every reachable patch inside a block
20 levels darker, run twice through the real pipeline — the paste the branch
shipped before this change (the copy, kept inline in the lab as the "before")
against healSkSL from the bundled heal.ts. The copy puts the block's own
level down at the rim: inner 100/110/120 against outer 120/130/140, rim step
20.0 levels, contrast 40. The shift lands the borrowed texture on the
ground's level: inner 120/130/140 against outer 120/130/140, rim step 0.0
levels, contrast 40 — the borrowed feature is still pasted at the strength it
was borrowed at, the hole reads as the ground it sits in, the block the patch
came from is untouched, and the frame away from the repair is the photo.
heal-skia-lab.cjs 28 PASS / 0 FAIL against the bundled module: the pass still
runs, the uniform block is the size its shader declares, and the paste is
still an exact copy of the source pixels — the lab's paste scene now borrows
from the SAME light (a white pixel at the middle of the borrowed patch, so a
copy and a blur of the dust cannot be confused), and its forty-spot and
three-spot runs still draw every spot in order. The scene where the two
lights differ is the seam lab's.
heal-search-lab.cjs 15, heal-probe.cjs 49, heal-zoom-geom.cjs 5,
heal-zoom-probe.cjs 8, mosaic-skia-lab.cjs 27, mosaic-probe.cjs 51 — all 0
FAIL, against the rebuilt app at http://localhost:8090 (docker compose up -d
--build frontend).
Regressions against the rebuilt app, rc=0, 0 fail: landing-test.cjs 172,
pro-gate-test.cjs 27, award-column-probe.cjs 18, otp-code-probe.cjs 10,
tone-curve-probe.cjs 42; backend npm test 180 passed, 0 failed; frontend
tsc --noEmit clean.
ponytail: the shift is one number per spot, measured over the rim, so a border
the two patches disagree about along its length is only matched on average — a
repair laid across a hard edge keeps a faint step where the edge crosses its rim,
and the other half of the Poisson solve (a correction that bends inside the
circle, a Jacobi solve over the spot's own box, a ping-pong pass per spot) lands
only when a real photo shows that step and the eye can find it. The gate is still
needed and still refuses: a shift corrects a light, it cannot invent a patch
where no patch of that light exists, so a speck surrounded by dust from another
light is left alone rather than covered with a guess. The source is still found
by the ring search — eight directions at three distances, each mirrored — and not
by PatchMatch: the search already refuses dust and wrong light, and PatchMatch
lands when a real photo shows the search picking a bad donor. The run is still
drawn spot by spot, with no stroke id in the recipe, so a long drag is a row of
circles rather than one region.
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3dtours
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f1385d8a08 |
web: hide what the brush paints, in cells, and never in a blur
HEAL borrows a patch of the photo and pastes it over what the brush covers. The
other half of the same gesture is the opposite thing — a patch of the photo the
user does not want shown to anyone, a face at a table, a plate, a badge, the
number on a note at the edge of the frame — and hiding it is the second tool on
the same layer: MOSAIC, next to HEAL in the FX row. Everything the two tools
share was already shared by the time this landed: one layer, one circle riding
the pointer, one wheel, one gesture that is one undo step, spots stored as
fractions of the render so the preview and the export draw the same circle. Only
what a spot MEANS split, and it split into two files over the piece of physics
both of them were already carrying: heal.ts and mosaic.ts, and brush.ts under
them for the size and the spacing of the circle they both lay.
What a mosaic spot does is destroy what it covers rather than replace it. The
frame is cut into square cells of MOSAIC_CELL (0.02 of the width — 5.12px on the
probe's 256px photo, 40px on a 2048px one) and every pixel of a cell takes the
colour found at that cell's own middle, read with img.eval so the block is the
snapshot's bilinear tap and not a neighbour's cell. What is under the circle is
still a picture of that place, at a resolution nothing can be read out of. A blur
was never in the running: it leaves the SHAPE of what it hides — a face under a
blur is still a face, a plate still a plate — and the arrangement is exactly what
the user is asking to keep to themselves. Cells coarse enough to lose the
arrangement are what "do not show this to anyone" needs, and the blockiness is
the price of it.
The cells are one grid over the whole frame, not one grid per spot: a pixel's
cell comes from its own position, and every block reads the snapshot rather than
the output, so two overlapping spots never pixelate a pixelation and a run lays
one band with no seam where its circles cross. The rim is hard for the same
reason in reverse — a feather would mix the cells back into the sharp photo along
the edge, which is a half-hidden thing leaking the arrangement it exists to hide.
A mosaic spot borrows nothing, so the layer draws no donor circle beside the
cursor: the second circle appears only when a spot has a source ('sx' in it),
which is the one place the two tools' DOM parts company. Each tool keeps its own
brush size, and each CLEAR chip clears only its own list, because the size a
dust speck is healed at is never the size a face is hidden at.
The recipe carries the list as adjustments.mosaic — x, y, r, the same fractions
HEAL stores, and readMosaic guards them the same way — and the renderer builds
one RuntimeEffect per count exactly as it does for HEAL (mosaicEffectFor), the
pass sitting right after the heal pass so a repair made on the same photo ends up
underneath the cells that hide the rest of it. The backend needed nothing: a
recipe is spread through as it stands, so a saved photo keeps its mosaic and a
shared one opens with it.
Verified:
mosaic-skia-lab.cjs (scratchpad, CanvasKit against the bundled mosaic.ts) — 27
passed, 0 failed: the cell rides in the frame block in the render's own
pixels and is a fraction of the WIDTH, so it is square on any shape; 4912
cells inside a spot each carry one colour, and 164/164 of them carry the
colour at their own middle; the 2px white dot on the dark square reads
250 -> 20; nothing outside the circle changed (0 stray pixels) while the
cells reach the rim (852 pixels at the edge); a spot wider than the frame
still runs; overlapping spots share one grid over 6335 pixels with 0
differing between them (no cascade); readMosaic refuses a zero radius, an
off-photo spot, junk and a missing list, and keeps a forty-spot list whole.
mosaic-probe.cjs (the rebuilt app at http://localhost:8090) — 51 PASS, 0 FAIL,
no page errors: FX offers a MOSAIC chip that arms the same brush layer and
says which tool it is painting for; the wheel sizes each tool on its own
(8.0% up, 5.0% back) and the circle follows it; a click lays exactly one spot
with no borrowed patch beside it; the pixels of the cell are one colour (0
levels across, cell 5.12px); the dot is unreadable (250 -> 15); nothing
outside the circle changed (0 pixels, worst 0) and the cells are not the
photo that was there (221/509 pixels changed); UNDO gives the photo back
exactly and REDO hides it again; a drag paints ONE band 25.6px wide, as wide
as the brush, standing for 5 points of travel and laying 5 spots that leave
0 pixels outside them changed, with the step within a cell 3.43 levels
against 21.25 between cells (635 + 157 pairs) — the cells are flat and their
borders jump; one gesture is one undo step; arming HEAL and arming MOSAIC
hand the pointer over and back with each tool's spots intact; CLEAR hands the
photo back pixel for pixel and leaves no chip behind.
The probe's own reading is deliberately a shape, not a colour: the app's
preview is the engine's render at preview scale with a JPEG on top (and its
auto dynamic range), so a cell's colour read back from the base would be two
encodings apart. The exact cell colour is the Skia lab's claim, where no
encoder sits between the shader and the reading.
heal-probe.cjs 49 PASS / 0 FAIL against the same build, heal-search-lab.cjs 15,
heal-skia-lab.cjs 27, heal-zoom-geom.cjs 5, heal-zoom-probe.cjs 8 — the brush
HEAL paints with is the one MOSAIC now paints with.
Regressions against the rebuilt app, 0 fail: landing-test.cjs 172,
pro-gate-test.cjs 27, award-column-probe.cjs 18, otp-code-probe.cjs 10,
tone-curve-probe.cjs 42; backend npm test 180 passed, 0 failed; frontend
tsc --noEmit clean.
ponytail: the cell is a fixed fraction of the width, not a fraction of the brush,
so a brush smaller than one cell paints a single block's colour; tying the cell
to the radius would mean a cell size per spot in the recipe, which is a recipe
change this tool does not need yet. The grid is one grid for the whole frame, so
a run of overlapping spots and one wide spot give the same blocks, and the run's
circles are laid spot by spot — drawing a run as one region wants a stroke id in
the recipe, the same change HEAL's own run is waiting on. A spot is in the
recipe by its fractions alone, so what the export prints is the mosaic the user
saw, and the original pixels under it are gone from the record on purpose.
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3dtours
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b795517d9f |
web: read a patch's light before pasting it, and paint with the brush
The brush was not healing: clicking a speck deleted one black spot and made
another, and the borrowed patch landed in a light the spot was not in, so the
repair read as a mark of its own. The circle the brush draws also slid off to
the side of the pointer as soon as the photo was zoomed in, and a drag showed
itself as a row of overlapping circles rather than as a brush being drawn.
The search was comparing the wrong thing. findHealSource scored a candidate
against the spot's own PATCH_TAPS — the centre and a ring at half the radius,
which is INSIDE the brush, where the dust is. The patch that matches a speck
best is then the one carrying a speck of its own, which is exactly how "heal a
spot" became "move it a few pixels": with a neighbour sitting at the 2.6r ring
the search itself prefers, the winner was that neighbour, 26 dark pixels pasted
where the repair was meant to be.
The taps are split now, by what they are for. The light a repair has to sit in
is read off the spot's RING — twelve taps at 1.15r, just outside the dust, the
scale the eye reads a spot's surroundings at — and taken as their MEDIAN,
because the ring can only be a little way out: some of its taps land on the
speck's own softened edge, and a mean drags the whole light down by them (the
eight-tap mean read 84 where the ground was 150, and with the gate below that
refused every candidate on the frame). What a candidate would actually paste is
the mean of its own inside taps, now including the ring at HEAL_FEATHER of the
radius — the circle is copied at full strength out to there, so that is where a
neighbour's dust leaking into the patch shows up and the middle of the patch
would never see it — and its cleanliness is how much those taps spread around
their own mean: dust is an outlier in its own neighbourhood, grain is not.
A candidate from another light is not scored at all. Past LIGHT_GATE (20 levels
of the 0-255 the sampler answers in) the patch IS the mark the user is
complaining about, so the search returns null rather than sending a wrong clone
and the caller leaves the speck alone. Within the gate the score is light * 3 +
cleanliness, so the light decides and cleanliness breaks the ties the eye would
not see. A spot the search refuses is not laid down at all — healUp skips it
instead of recording a self-patch, which was a repair that changed nothing —
and a stroke that is refused end to end reports no spots, which addHealSpots
already treats as nothing to do: no step in the history, no spot on the photo.
The ring had to be a fraction, not an offset. healPos was the pointer's pixels
inside the layer, and the layer carries the stage's transform, so a zoom scaled
that offset a second time: at 1:1 the pointer sat at screen x 846.5 and the
ring was drawn at 1288 — 442px away, the same distance the user sees as "the
circle is in the wrong place when I zoom in". The pointer is stored as a
fraction of the photo now — healPoint already answers one for the spot it lays
— and drawn as a percentage of the layer, so the layer's own transform scales it
once; off the photo there is no ring. The eyedropper's icon had the same shape
of bug (its sample was always right — pickAt reads the photo's own rect) and got
the same fix in the same file, since it was two lines.
The stroke is one mark of the brush. The trail was a circle per point of travel,
laid one HEAL_SPACING (0.6) radii apart, which is what a row of beads looks
like; it is one SVG path with round caps and round joins now, its width the
brush's own diameter and its colour the accent at 45%, so what the pointer draws
reads as the band it is about to lay down. The count of travel is kept on the
element (data-points) so the probe can still hold the run it becomes to the run
it showed.
Verified:
heal-search-lab.cjs (scratchpad, Node against the bundled heal.ts) — 15 PASS,
0 FAIL: one speck alone is repaired, from a patch that is clean field, and
its light is 0.0 levels off the spot's own; a speck with a neighbour exactly
at the search's first ring borrows from the far side with 0 dark pixels
pasted; a speck ringed with dust in all eight directions skips past the ring
(0 pasted); a speck in the corner stays inside the frame; a speck at the lip
of a shadow, where every reachable patch is 60 against a ground of 150, is
refused (null); ground with a dark edge through it is not a refusal — the
repair comes from the light side and its light is 0.0 levels off.
heal-skia-lab.cjs — 27 PASS, 0 FAIL (the shader and the search unchanged in
everything the search is not asked here).
heal-probe.cjs (the rebuilt app at http://localhost:8090) — 49 PASS, 0 FAIL,
no page errors: the circle rides the pointer at the size the chip reads; one
click heals a speck to 151 with its four neighbours field; the borrowed
patch is a real distance away and is clean field; a drag shows ONE mark,
6.1px wide against a 6.1px brush, standing for 15 points of travel, lays
exactly 15 spots, clears on release, and UNDO takes the whole stroke back;
25 spots carried with the first healed speck still first; everything gone
after a reload; CLEAR brings it all back.
heal-zoom-geom.cjs — 5 PASS, 0 FAIL: at fit and at 1:1 the ring's screen
centre is the pointer (846.5,452.5 both times, against 1288 before), the
ring keeps the brush's size on screen, and a repair made at a zoom lands
under the pointer.
heal-zoom-probe.cjs — 8 PASS, 0 FAIL: on a structured 2048px photo at 1:1 the
speck goes, the donor is at least a ring away, the patched circle is within
1.07 levels of the ground it landed on, the donor's own circle is drawn on
the pixels it borrowed; on a navy field with three specks, two repairs land
0.0 levels from their ground.
heal-look2.cjs (scratchpad, PNGs in /home/locpham): the pair case used to
paste its neighbour and read min 3 inside the healed circle — the pasted
dust — and reads 151 now, the untouched second speck alone in the frame;
the big-speck case (dust r=9 under a 6px brush) now lays NO spot at all,
which is the refusal working: the speck is left alone instead of smeared.
Regressions against the rebuilt app, 0 fail: landing-test.cjs 172,
pro-gate-test.cjs 27, award-column-probe.cjs 18, otp-code-probe.cjs 10,
tone-curve-probe.cjs 42; backend npm test 180 passed, 0 failed.
web tsc --noEmit clean.
ponytail: a refusal leaves the speck on the photo and nothing on the screen —
the user closes the brush in a size that covers it and clicks again — which is
the honest half of the trade the user asked for, but it is silent; a hint would
mean a toast or a shake, and neither is worth a component. The gate is a
flat 20 levels, not a percentage of the local contrast, so a photo with a hard
edge through the brush's own ring reads as one light and can still take a donor
from the other side of it. The search reads the preview JPEG rather than the
original, so a patch near the preview's own edges is chosen from the pixels the
user is looking at, not from the ones the export will print. And the run a
stroke leaves behind is still drawn as its spots, circle by circle, because each
one is a repair with a borrowed patch of its own — drawing the laid run as one
band would need the recipe to remember the gesture (a stroke id on the spots),
which is a recipe change and not what was asked.
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3dtours
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88cff5ca87 |
web: draw the dust brush into strokes, size it by the wheel, uncap the list
A speck of dust is small and there is never only one, so the brush had three
things wrong with it: the list stopped at sixteen and the seventeenth repair
pushed the first one out of the shader, the size was a choice of three buttons,
and one gesture laid exactly one spot — a scratch across a hundred pixels was a
dozen clicks.
The cap is gone rather than raised. SkSL indexes a uniform array by a constant
only (the trick the tone curve's mixer already uses), so HEAL_SKSL carried
sixteen unrolled blocks and the list was trimmed to fit them. The shader is now
built for the count it is handed — healSkSL(n), with healUniforms returning
(n * 2 + 1) * 4 floats, the same declaration order for any n — and the renderer
caches one compiled effect per count (exportEngine's healEffectFor). readHeal
no longer slices and the app appends whatever a gesture reported. No repair is
dropped to make room for a later one: the speck healed first is the speck that
stays healed.
The wheel is the size now. wheelHealR multiplies the radius by
exp(-deltaY * 0.0015), so a trackpad's small deltas and a mouse's 100px notch
are the same gesture at two speeds, bounded at 0.3% and 25% of the photo's
width — below the first a spot is finer than the pixels it is drawn on, past
the second it would borrow its patch from off the frame. S, M and L are gone,
and because there is nothing left to point at, the HEAL chip's own readout is
the size: the number the brush is set to is the number on the chip.
The pointer paints. Down starts a stroke, move adds a point every HEAL_SPACING
(0.6) radii of travel, and up turns the whole run into spots in one report — so
a stroke is one undo step however long it was, and the trail drawn while the
pointer is down is a preview of that run, in the accent, cleared the moment the
spots land. The part of a stroke that leaves the photo lays nothing down, and
the pointer is captured so a stroke that runs past the edge ends where the
pointer does rather than leaving a spot hanging at the frame.
The wheel had to be stopped, not merely claimed. The heal layer is a child of
the stage, and the stage has its own wheel listener that zooms the photo, so a
wheel over the brush grew the brush AND zoomed the view: the probe caught it as
a cursor circle 15% wider than the readout it was drawing. The layer's listener
(native, because React's own onWheel is passive) now stops propagation — while
the brush is up, the wheel sizes the brush and nothing else.
One number moved that none of the three asks mentioned, and it is what the
probe's remaining failure was about. The feather band was 45% of the radius,
and that band is the only place the pixels being repaired are mixed back into
the patch, so with the default 6px brush it left a ring of the speck's own edge
one pixel inside the circle (115 in a field of 150) — which the preview's own
JPEG then rang around, reading 177 a pixel off the centre of a repair that
should be flat. Narrowing the band to the outer 15% copies the patch over
everything inside 0.85r: sub-pixel at the default brush, still a soft edge at a
big one, and that pixel now reads 151.
Verified:
heal-skia-lab.cjs (scratchpad, Node + the full CanvasKit build) — 27 PASS,
0 FAIL: the shader for a count compiles through RuntimeEffect.Make and its
uniform block is (n * 2 + 1) * 4 floats (n=1 -> 12, n=40 -> 324); a single
spot copies the donor exactly and leaves the rest of the frame untouched,
pixel for pixel; forty spots are carried whole with the first and the last
both drawn; three spots in one run each borrow their own patch; readHeal
clamps and drops zero-radius spots and no longer trims the list;
wheelHealR grows, shrinks and clamps at both ends (0.3% and 25%); the
search finds a patch and still refuses a brush that covers the frame.
heal-probe.cjs (scratchpad, the rebuilt app at http://localhost:8090) —
48 PASS, 0 FAIL, no page errors: the circle under the cursor is exactly
the size the chip reads, before and after a wheel, and the wheel grows,
shrinks, stops at 25% and at 0.3% and returns to where it started; there
are no size chips left; one click is one spot, the speck reads 151 at its
centre and its four neighbours are field too; a drag shows at least three
trail circles, lays exactly that many spots, clears the trail on release,
and UNDO takes the whole stroke back at once while leaving the repair made
before it alone; REDO repaints it; a bigger brush takes a ten-pixel blob;
twenty-five spots are carried with the first healed speck still first and
still healed; every speck is gone after a reload; CLEAR brings them all
back and lays no spot of its own; the chip goes amber only while spots are
on the photo.
Regressions against the rebuilt app, 0 fail: landing-test.cjs 172,
pro-gate-test.cjs 27, award-column-probe.cjs 18, otp-code-probe.cjs 10,
tone-curve-probe.cjs 42; backend npm test 180 passed, 0 failed.
web tsc --noEmit clean.
ponytail: a stroke's repairs land when the pointer comes up, not under it as
they are painted — a live repair would mean recompiling the pass and re-cutting
the preview per point mid-gesture; the trail is what the pointer has drawn, and
it is drawn in the accent so the difference reads. The list is uncapped, so a
runaway stroke pays one shader compile per distinct count it reaches, cached
for the rest of the session: a ceiling would have to come back with the trim.
The search still has no colour-matching term, so the donor is chosen by
resemblance alone, and the spots still live in the rendered photo's
coordinates, so re-cropping or re-rotating after healing slides them.
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3dtours
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3ee0137d0d |
web: repair dust with a brush that borrows a patch of the same photo
A sensor speck is not a filter: it is a small lie in one place, and every
slider in the panel is global, so there was no way to say "here, and only
here". The FX row now has a HEAL chip. Arming it turns the pointer into a
circle you can size S, M or L, and every click on a speck covers it with a
patch of skin borrowed from a few radii away — the repaired sites persist in
the recipe like any other edit, and UNDO takes them back one click at a time.
The spot is stored in the rendered photo's fractions, not in the preview's
pixels: x, y and a radius that is a fraction of the photo's WIDTH, so the
circle stays round on a tall or a square frame and the same recipe heals at
preview resolution and at export resolution without a second code path.
`readHeal` is the only door in, and it validates, clamps and drops the spots
with no radius before anything downstream sees them.
The source patch is searched for, not asked for. `findHealSource` walks eight
directions at three distances — 2.6r, 4.2r, 6.5r — and each candidate's mirror
through the spot as well, scores every one with a nine-tap comparison of the
neighbourhood, and hands back the first that actually resembles the ring around
the speck. When nothing fits — a brush wide enough to swallow the whole frame —
it returns null and the click is refused rather than smearing a wrong colour
over it. There is no colour-matching model here and no second draggable source
circle: Lightroom lets you place the donor, this finds one.
The pass runs last on the photo's own pixels. It is inserted after the grade,
the curve and the grain and before the frame, so the patch it pastes is copied
from pixels that have already been graded and grained — it matches by
construction, with no second copy of the pipeline to keep in step — and the
frame, the card and the watermarks are drawn over the result, so healing can
never erase the furniture of the render. The brush is a feathered circle at
0.55r, which is what keeps a repair from reading as a sticker.
SkSL indexes a uniform array by a constant only, so the shader is the block
unrolled HEAL_MAX = 16 times, the same trick the tone curve's mixer already
uses. Sixteen is the ceiling and the oldest spot falls out when the
seventeenth arrives. CLEAR drops the whole field — turning the chip off keeps
the repairs, which is the distinction between disarming the brush and undoing
the work.
Verified:
heal-skia-lab.cjs (scratchpad, Node + the full CanvasKit build) — 15 PASS,
0 FAIL: HEAL_SKSL compiles through RuntimeEffect.Make and
makeShaderWithChildren; the uniform block is 132 floats in declaration
order (16 spots + 16 sources + size, w/h/feather); a dust speck pinned on
the canvas comes back as the borrowed patch while the rest of the frame is
untouched, pixel for pixel; readHeal clamps, drops zero-radius spots and
caps the list at 16; the search finds a valid donor and returns null for a
brush that covers everything.
heal-probe.cjs (scratchpad, the rebuilt app at http://localhost:8090) —
29 PASS, 0 FAIL, no page errors: the cursor circle is 2 x 0.012 x width and
centred on the pointer, L is visibly bigger, S and L are exclusive; one
click is one spot; a speck at 151 reads 154 at its centre after the heal
and the photo's other specks and empty skin are unchanged; the spot and its
borrowed source are both drawn; the chip goes amber; CLEAR appears and
restores everything; UNDO (the TopBar button) brings the dust back and REDO
heals it again; three specks and one L-sized blob all go; the repairs
survive a reload.
Regressions against the rebuilt app, 0 fail: landing-test.cjs 172,
pro-gate-test.cjs 27, award-column-probe.cjs 18, otp-code-probe.cjs 10,
tone-curve-probe.cjs 42; backend npm test 180 passed, 0 failed.
web tsc --noEmit clean.
ponytail: spots live in the rendered photo's coordinates, so re-cropping or
re-rotating after healing slides them — re-heal or CLEAR when that matters; a
coordinate space pinned to the sensor would need the crop and rotation to carry
the spots through. No live brush-size gesture and no colour-matching term: the
donor is chosen by resemblance alone, add a colour term if skin tones ever
mismatch. The list is capped at 16 with oldest-out rather than refusing the
seventeenth click.
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